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An integral eq uation for t he distribution of curren t along a cylindri cal a ntenn a in a co nducting di electric is d eriv ed . It is shown t hat the boundary co ndi tions for a n ante nn a in such a m edium a re formally t he same as for an a ntenn a in free space. The equation is solved for t he current I and t he driving-poin t impedan ce Z by m eans of a tec hn ique t hat achieves s uffi cien tly high acc uracy in t he leading terms of an iteration procedu re so t hat t he higher-order terms do not need to be evaluated. Moreover, t hese leading te rms consist only of t rigonometri c fun ctions wit h co mplex coeffi cien ts. The electromagnetic fi eld in t he infinite dissipativ e medium m ay be co mpu ted relatively eas ily s in ce t he current in th e ante nn a is expressed in such sim pie terms.
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King et al. (1960) studied this question.
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